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6987097 = 134113109
BaseRepresentation
bin11010101001110101011001
3111010222111101
4122221311121
53242041342
6405431401
7113250355
oct32516531
914128441
106987097
113a42567
12240b561
1315a83a0
14cdc465
159303b7
hex6a9d59

6987097 has 8 divisors (see below), whose sum is σ = 7708680. Its totient is φ = 6291840.

The previous prime is 6987091. The next prime is 6987103. The reversal of 6987097 is 7907896.

It is an interprime number because it is at equal distance from previous prime (6987091) and next prime (6987103).

It can be written as a sum of positive squares in 4 ways, for example, as 143641 + 6843456 = 379^2 + 2616^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-6987097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6987091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6022 + ... + 7087.

It is an arithmetic number, because the mean of its divisors is an integer number (963585).

Almost surely, 26987097 is an apocalyptic number.

It is an amenable number.

6987097 is a deficient number, since it is larger than the sum of its proper divisors (721583).

6987097 is a wasteful number, since it uses less digits than its factorization.

6987097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13163.

The product of its (nonzero) digits is 190512, while the sum is 46.

The square root of 6987097 is about 2643.3117485458. The cubic root of 6987097 is about 191.1755100284.

The spelling of 6987097 in words is "six million, nine hundred eighty-seven thousand, ninety-seven".

Divisors: 1 13 41 533 13109 170417 537469 6987097